820-00165 green/orange light ok / no power

Aivaras

Member
Found liquid damage on c5008 and c5007

power supply shows that it takes 0.10A

pch_susack_l = 3.272v
PM_sysrst_L = 0.010V
PM_PCH_SYS_PWROK = 0V
PM_PCH_PWROK = 0V
PM_RSMRST_L = 3.248V
PM_PWRBTN_L = 3.417V
SMC_ADAPTER_EM = 3.425V
PM_BATLOW_L = 3.297V
PCH_DSWVRMEN = 3.191V
PM_DSW_PWRGN = 3.427V
PCIE_WAKE _L = 3.3V
PPBUS = 8.58V
PP3V42 = 3.432V
PVRTC = 3.302V
PP5V_S5 = 5.03V
PP5V_S4RS3 = 0V
PP3V3_S5 = 3.302V
PP3V3_S4 = 0V
PP3V3_S3 = 0V
PP3V3_SUS = 3.281V
pm_slp_s5_l = 0v
pm_slp_s4_l = 0v
 

2informaticos

Moderator
Staff member
Trigger SMC_ONOFF_L and check for puls at PM_PWRBTN_L and PM_SLP_S4/3_L.
Should be better to use an o-scope, in order to catch any fast puls.
Does it turn on in SMC bypass mode?
 

Aivaras

Member
PM_PWRBTN_L drops to 0.360v
PM_SLP_S4/3_L no pulse (don't have o-scope at the moment)
It won't turn on in SMC bypass mode.
 

2informaticos

Moderator
Staff member
Trigger SMC_ONOFF_L repeatedly, don't keep it low.
PM_PWRBTN_L should go high again instantly.
See if any pulse can be catched on DMM at PM_SLP_S4/3_L...
 
Top